1. Welcome!um.. maybe i am just crazy but am i the only one that does not view CR as a 1 to 1 conversion to a character ? CR is a rating based off a party level not an individual one so you would have to divide by 4 to get the equivalent CR meaning the highest CR you can hit is 5 at lvl 20. no wonder everyone hates the t-rex you should never be able to turn into that.
1. Welcome!
2. This thread is 2 1/2 years old.
3. No, CR doesn't work like that at all in 5th. There's a formula in the DMG for figuring CR that can be used if you really want to know a character's CR. As for CR being a party threat rating, it's not, it just a benchmark loosely tied to average party level, but a CR = party level is usually only an easy challenge for the party.
4. Welcome!
i have only recently started playing and just got poly so im trying to figure out what i can really do with it
and thanks for the welcome
ill try to track down where it is in the DM thanks for the point in the right direction
The problem with polymorph into some high CR beasts is size, they might not fit the area you are in. Then you have to use the spell the other way, to shrink them.